Thousands of opposition protesters have converged on Pakistan's heavily-barricaded capital, demanding the release of jailed former prime minister Imran Khan.

Thousands of supporters loyal to jailed former Pakistan prime minister Imran Khan flooded into the capital Islamabad, defying barricades, tear gas and rubber bullets to call for his release and the dissolution of the government.

Pakistan's capital Islamabad was gripped by violence on Tuesday as protesters demanding the release of former Prime Minister Imran Khan clashed with security forces near the parliament. Here is a look